# Breakthrough Energy Ventures

> Breakthrough Energy Ventures is a VC fund backing Energy. See 283 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Paris, France
- Total investments: 283
- Last investment: Jul 2026
- Lead investor: 46%
- Last fund: Jul 2024
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/company/breakthrough-energy-ventures/
- X (Twitter): https://twitter.com/btenergy
- Website: https://www.breakthroughenergy.org
- Facebook: https://www.facebook.com/BreakthroughEnergyCoalition

Breakthrough Energy Ventures is an investor-led fund made up of members of the Breakthrough Energy Coalition, guided by scientific and technological expertise and committed to investing patiently in developing new ways to live, eat, travel, and build. Breakthrough Energy Ventures provides reliable and affordable power without contributing toclimate change. Breakthrough Energy invests in new technologies that make power reliable and affordable for everyone while not warming the planet.

## Contacts

5 contacts available for Breakthrough Energy Ventures. Shizune tracks 20 team members at Breakthrough Energy Ventures. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/breakthrough-energy-ventures?utm_source=investor_profile

## Round sizes

| Stage | Round size |
| --- | --- |
| Series A | $10M–$65M |
| Series B | $20M–$193M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Energy | 39 | 14% |
| Renewable Energy | 31 | 11% |
| Manufacturing | 17 | 6% |
| CleanTech | 13 | 5% |
| Biotechnology | 12 | 4% |

100 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series A | 64 | 23% |
| Series B | 45 | 16% |
| Funding Round | 25 | 9% |
| Seed | 23 | 8% |
| Series C | 17 | 6% |

13 stages tracked in total.

### Country

| Country | Investments | Share |
| --- | --- | --- |
| United States | 92 | 33% |
| Canada | 5 | 2% |
| France | 3 | 1% |
| United Kingdom | 3 | 1% |
| Sweden | 2 | 1% |

11 countries tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| Ann Mettler | Vice President, Europe | 0 | https://shizune.co/investors/profile/ann-mettler |
| Bill Gates | Founder | 96 | https://shizune.co/investors/profile/bill-gates |
| Bill Gates | Founder | 95 | https://shizune.co/investors/profile/william-gates-sr |
| Kyle Teamey | investor | 6 | https://shizune.co/investors/profile/kyle-teamey |
| Adam Uliana | Innovator Fellow | 0 | https://shizune.co/investors/profile/adam-uliana-831c |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Rize | Rize operates as an agritech startup dedicated to transform rice cultivation. | $20M | Series B | Jul 16, 2026 |  |
| Mantle8 | Mantle8 is a natural hydrogen exploration company. It has developed geological models and imaging technologies that detect the best natural hydrogen locations with “world-first accuracy“ | $36.4M | Series A | May 13, 2026 |  |
| Cowboy Space | Cowboy Space is a space infrastructure company focused on developing systems for in-orbit computing, space-based power, and launch capabilities. The company is building Low Earth Orbit satellites designed to harness solar energy and support data processing applications in space. Its approach integrates launch vehicles and orbital data centers intoa single system, with rocket upper stages intended to remain in orbit as operational computing platforms. Cowboy Space is also working on technologies related to transmitting energy from space to Earth and supporting high-performance computing beyond terrestrial infrastructure. The company’s team includes engineers and specialists with experience from aerospace, satellite, and technology organizations. | $275M | Series B | May 11, 2026 |  |
| Barocal | Barocal is a Zero-carbon refrigeration pioneer. | $10M | Seed | May 04, 2026 |  |
| Rumin8 | Rumin8 is tackling one of the biggest contributors to climate change: methane emissions from livestock. The digestive process of beef and dairy cattle accounts for a full 3.7% of all greenhouse gas emissions, a huge contribution from a single source. With billions of people around the world relying on animal proteins as part of their daily diet,eliminating livestock methane production is a powerful lever in the quest toward a climate-optimal future.Rumin8 has invented a technology that has been shown to reduce the emissions from cattle by up to 95%. Our technology productizes the anti-methane compounds that occur naturally in plants and turns them into dietary supplements for livestock. The results are a reduction in methane emissions by up to 95%, increase in efficiency of the animal’s digestive systems, and more energy for the animal to growWe are on a mission to decarbonize hundreds of millions of cattle around the world so the global food system can take a giant step forward. | $3M | Venture - Series Unknown | Mar 25, 2026 |  |
| Arinna | Arinna builds ultra-light, flexible high-power solar tech to energize space infrastructure and next-gen power systems. | $4M | Seed | Mar 25, 2026 |  |
| Litherm Technologies | Litherm Technologies GmbH is a German deep‑tech startup focused on decarbonizing lime and cement production using fully electric kiln technology. | $7.6M | Seed | Mar 03, 2026 |  |
| Heron Power | Heron Power is an energy technology startup focused on developing power electronics for the modern electrical grid. They aim to facilitate the expansion of electricity generation by innovating foundational technologies. | $140M | Series B | Feb 18, 2026 |  |
| Fleetzero | Fleetzero is building battery electric cargo ships to affordably decarbonize ocean freight. | $43M | Series A | Jan 16, 2026 |  |
| Mangrove Lithium | Mangrove Lithium, a Vancouver-based company, has developed a breakthrough platform for the most cost-effective production of battery-grade lithium hydroxide and carbonate from diverse input streams and assets. Mangrove’s modular solution can be scaled to any capacity and co-located with upstream lithium producers or cathode and cell manufacturers.The platform technology is also being commercialized for the conversion of waste brines to chemicals and desalinated water. | $85M | Debt Financing | Jan 15, 2026 |  |

10 of 283 investments shown.

## Co-investors
- [Lowercarbon Capital](https://shizune.co/investors/profile/lowercarbon-capital) — VC Fund, 32 deals together
- [Prelude Ventures](https://shizune.co/investors/profile/prelude-ventures-llc) — VC Fund, 31 deals together
- [Climate Pledge Fund](https://shizune.co/investors/profile/climate-pledge-fund) — VC Fund, 21 deals together
- [Capricorn Investment Group](https://shizune.co/investors/profile/capricorn-investment-group) — VC Fund, 17 deals together
- [Energy Impact Partners](https://shizune.co/investors/profile/energy-impact-partners) — VC Fund, 17 deals together
- [Temasek](https://shizune.co/investors/profile/temasek) — VC Fund, 17 deals together

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## FAQ

### What does Breakthrough Energy Ventures invest in?

Breakthrough Energy Ventures invests primarily in Energy, Renewable Energy and Manufacturing startups, most often at Series A and Series B stage. Most of the 283 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Breakthrough Energy Ventures's check size?

Breakthrough Energy Ventures typically joins rounds of $10M–$65M at Series A and $20M–$193M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Breakthrough Energy Ventures participates in.

### How do I contact Breakthrough Energy Ventures?

Public channels for Breakthrough Energy Ventures include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Breakthrough Energy Ventures?

The team at Breakthrough Energy Ventures includes Ann Mettler (Vice President, Europe), Bill Gates (Founder) and Bill Gates (Founder), among 20 team members tracked by Shizune. The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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